Is this 3D model free to download?

Yes, OTF Knife / Switch Blade (Functional) is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link to open the original listing by the creator.

Where do I download the STL file?

The download is hosted by Thingiverse. Use the "Download from Thingiverse" link on this page to open the original listing and grab the file, or save it to your print queue in the free Thinger app.

Designed by David6722, published on Thingiverse. Please credit the creator when sharing your print.

Can I print this at home?

Yes. This is a printable 3D model intended for home FDM and resin printers. Check the original listing for suggested print settings.

OTF Knife / Switch Blade (Functional)

Source: Thingiverse by David6722

The OTF Knife / Switch Blade (Functional) is a free printable 3D model from Thingiverse by David6722. SCALE UP MODELS 10x to get correct size Ill fix that when I get a chance. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

500 saves Source: Thingiverse Updated 2026-10-16

Tags: OTF, Knife, /, Switch, Blade, (Functional)

About this model

SCALE UP MODELS 10x to get correct size Ill fix that when I get a chance. Was gonna buy an OTF knife for the fidget factor and decided i could get it from a plastic one haha. Designed this myself because i didn't wanna bother looking for springs and I figured just about any common rubber band would work making it easier for anyone else to make it. For some odd reason my machine was giving me grief with some of the tolerances in this design making some areas tighter than others even though in the actual cad file the tolerances should be the same. Anyhow, just make sure the blade slides absolutely free and "Clicks" into place at each end. Sand areas on the blade carefully just enough so that everything is free and locks properly. i recommend 4 walls and 50% infill on the slider so the rubber…

Frequently asked questions

Is this 3D model free to download?: Yes. OTF Knife / Switch Blade (Functional) is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link above to open the original listing.
Where is the STL hosted?: The download is hosted by Thingiverse, not by Thinger. We link you directly to the original listing by David6722.
Who made this model?: Designed by David6722, published on Thingiverse. Please credit the creator when sharing your print online.
Can I print this at home?: Yes. This model is intended for home FDM and resin 3D printers. Check the original listing for suggested print settings like layer height and supports.